Reprogrammable ultra-fast shape-transformation of macroporous composite hydrogel sheets

Hongyu Guo; Jian Cheng; Jianying Wang; Peng Huang; Yijing Liu; Zheng Jia; Xiaoyuan Chen; Kunyan Sui; Teng Li; Zhihong Nie

doi:10.1039/C6TB02198K

Reprogrammable ultra-fast shape-transformation of macroporous composite hydrogel sheets†

Hongyu Guo,‡^a Jian Cheng,‡^b Jianying Wang,^a Peng Huang,^c Yijing Liu,^d Zheng Jia,^b Xiaoyuan Chen,

^d Kunyan Sui,*^e Teng Li*^b and Zhihong Nie

*^a

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* Corresponding authors

^a Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, USA
E-mail: znie@umd.edu

^b Department of Mechanical Engineering, University of Maryland, College Park, MD, USA
E-mail: LiT@umd.edu

^c Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University, Shenzhen, P. R. China

^d Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, USA

^e Department of Polymer Science and Engineering, State Key Laboratory Cultivating Base for New Fiber Materials and Modern Textiles, Qingdao University, Qingdao, China
E-mail: kunyansui@163.com

Abstract

In this communication, we report a composite macroporous hydrogel sheet that can rapidly transform into multiple 3D shapes in response to near-infrared (NIR) light on demand. The transformation relies on the photo-thermal-induced asymmetric shrinking of the hydrogel material, which is further verified by finite element modeling.

Journal of Materials Chemistry B

Reprogrammable ultra-fast shape-transformation of macroporous composite hydrogel sheets†

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Reprogrammable ultra-fast shape-transformation of macroporous composite hydrogel sheets

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